Max current setting
What is the maximum current we can set on the DuetWifi without cooling fan?
I'm pretty sure I read it somewhere in the wiki, but can't retrieve the info…
If the Duet WiFi/Ethernet is in a reasonable well-ventilated space, then it's OK to 2A per motor without a cooling fan. If it's in a confined or warm space such as under the heated bed of a delta printer, you might need a fan at lower current.
The latest firmware will warn you if the stepper drivers are warning about over-temperature.
For the tests, the board will be in an open space, and I will reduce the current to 1.2-1.5A.
In its final position, it will be enclosed, but I already planned to add a good radial fan to blow laterally on the TMCs (DuetWifi and Duex5 will be side by side, so all drivers on the same line).
I guess bed/hotends/fans FET also need to be cooled?